Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12175
Title: A review of previous studies on the applications of optical fiber sensors in geotechnical health monitoring
Authors: Pei, HF
Teng, J
Yin, JH 
Chen, R
Keywords: Brillouin optical time domain analysis
Fiber Bragg grating
Geotechnical structure
Structural health monitoring
Issue Date: 2014
Publisher: Elsevier
Source: Measurement : journal of the international measurement confederation, 2014, v. 58, p. 207-214 How to cite?
Journal: Measurement : journal of the international measurement confederation 
Abstract: In recent decades, conventional electric instruments have already been widely used to monitor the performance of geotechnical structures. However, there are several inherent limitations of electric instruments for engineering including: electromagnetic interference, a large number of cables for multipoint measurement, signal loss in long distance transmission, and poor durability. Since the first Fiber Bragg Grating (FBG) sensor was fabricated in 1978, a significant progress has been made on the commercialization of optical fiber sensing technologies. In 1980s, a fully distributed sensing technology named Brillouin Optical Time Domain Analysis (BOTDA) has been proposed and developed for measuring strain and temperature. In this paper, the authors review previous studies on the development and application of fiber optic sensors. Based on the measured strains, various analysis methods were transferred to required parameters such as displacement, force and pressure which can more directly reflect the safety of geotechnical structures under complex engineering stress condition.
URI: http://hdl.handle.net/10397/12175
ISSN: 0263-2241
DOI: 10.1016/j.measurement.2014.08.013
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